.40 range/ballistics?

Me and some friends were out shooting rifles at around 150m. About a human sized piece of wood with a paper target on it.

Just for jokes I shot at it with my Glock 23. To our surprise they were striking the target. Not on paper, but the wood.

I was holding right on target. Got me wondering what the rise and fall of it is. Is it some sort of 5m/150m zero :icon_neutral:...? He picked it up and did the same.